You can remove contacts from a list in a few ways!
1. From the Contact Details page
On the Contact Details page, you can remove the contact from a list by simply unchecking the list - your change is saved automatically.
2. Using the context menu for the contact on the List page
When viewing the contacts in a distribution list, you can click the context menu next to any contact, and choose "Remove from list"
3. Using multi-select on the List page
When viewing the contacts in a distribution list, you can select multiple contacts using the checkboxes on the left, and then choose "Remove from List" from the Multi-Select menu at the bottom of your screen.
4. Remove all contacts from a list
When viewing the contacts in a distribution list, you can click the main context menu at the top right, and select "Remove all contacts from list"